my father died in 1974 he had purchase agricultural punchai land 1962 sale deed name my father revenue authority given me patta in my name 1980 SPECIAL TEHSILDAR we agriculture above land still date i had settle the property my son settlement deed 2013.patta transfer my son,
my only elder sister she was born 1937 she has married 1952 now she has applied permanent injunction for 1/2 share above property of agriculture land in Tamil nadu request kindly advise as per civil law.